Charles h



i @aitrntatzs @einer @fge AND WILLIAM READ, JR, OF'SAME PLACE.

Letters .Patent No.4 77,948, dated M'ay 19,1868.

vGOVERNOR FOR STEAM-ENGINES'.

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' Beit known that 1, CHARLES BACON, of Boston, in the county of Suifolk, and State ot' Massachusetts, have invented a new and useful Improvement in the Mode of Regulating the Speed 'of Steam-Engines, of which the following is' a full, clear, and" exact description, rference being had to the accompanying drawings, making a part of this specication, in whichv lFigure 1 represents an elevation of an apparatus and itseon'ne Figure 2- is ,Ya vertical longitudinal section of the saine.

,Y The object of' my invention is to provide a simple4 and eeient meansV of regulating the speed of `steam or." other engines andthe inve'ntion consists in operating the link wh'wh controls the valve 4 by ineans' of ashaft passing through a vessel containing water or other uid, on which shaft-is arranged a propeller, and thc sh'aft being allowed a. horizontal motion, forward and back, through 'the ends of the water-vessel. i The shaft, with-the propeller, is operated or rotated` by gearing, ora pulley and belt, from the main shaft, so that,'by the increased or decreased velocity ofthe propeller, the shaft will move forward or backward, 'being ctions embodying my invention, land influenced by the'resis'tance, of the iiuid, and operate a lever which is connected with the link that ontrolsvthe i valve.-

Referring to the drawings, A represents a cylindrical vessel or' reservoir, for containing we terer other iluid. On the top of the .cylinder A are two chambers, B C, opening into the vessel A, butclosd at the top. 4Extcndf ing longitudinally through the cylinder isa shaft,- a, on which is arranged aprope'ller, b, assliown in iig, 2Q On one end of the shaft a, outside the cylinder A, is a pulley, D, by which 'the shaft a is putin motion from the main shaft of the engine. The pulley isjso connected to the shaft a as to allow the latter a free longitudinal motion-during its rotation. l

c represents a vbell-crank lever, the lower 'arm of which restsA against the' projecting end oi' the shaft a.

,Toi the other end or arm of the lever e is attached a rod orV bar, d, connected to the link, E,\as'shown in iig. 1,

which link is connected to the valve, and operated by means of eccentrics, in the nsualfmanner.. V

p The'water or fluid in the cylinder A." and chambers B C extends about halt" n'ayup the said chambers,

leaving a space in each, which adds to the resisting action-of the fluid in the rescrvoirA, so that, as' the propeller b is moved forward or back, the water will be forced up into one or lthe other of the chambersLcompresrsing the'air in one, and causing a partial vacuum in thc other. As the speed of the engine increases, the increased velocity of the propeller will 'canse the shaft to `move with'it, and act against thebell-crank leveigc,l which drommnnicates motion to thelink, and thus closesl andl opens the valve,` as circumstances require. The weight of' thelink will cause the -lever to bear constantly upon the endof the shaft a, thus regulating the motion 'of the steam-valve, and admitting or-shuttingoii` the steam, according to the required speed ofythe engine.

The arrangement ofthe apparatus and regulator, as shown in the'drawings, is designed for a non-reversible engine. When applied toa reversible engine, the slot may be continued through the whole length of the link;A and a stop may be arranged at the centre, to limit the movement of the link.

I do not claim the use of a propeller attached to shaft, and placed within a chamber containing liquid; but

What I claim, and desire to secure by Letters Patent, is- Y The combination lof the propeller and shaft ab, working' within the cylinderA, constructed with one or more chambers B C, with the link E, crank e,-and rod d, substantiallyr as auch for the purpose sctforth.

In testimony whereof, I have signedmy name to this specification in the presence of two subscribing witnesses.V

i c. n. BACON.

Witnesses:

J. H, ADAMs,

WILLIAM READ, Jr. 

